As negotiations for a Global Plastics Treaty are due to conclude at the United Nations, we check in on whether health is on the agenda with Dr Cressida Bowyer, Associate Professor in Arts and Sustainability from the University of Portsmouth in the UK who is at the conference.

We also hear from John Chweya, a Kenyan waste picker, who has seen the impacts of plastic waste firsthand and delve into the scientific evidence about how plastic harms health with Dr Stephanie Wright, Associate Professor in Environmental Toxicology at Imperial College London.

25 years on from the SuperAgers research project being established, we catch up with lead investigator Sandra Weintraub who is Professor of Psychiatry and Behavioral Sciences at the Feinberg Mesulam Institute to find out what factors link these age-defying brains.

Claudia and BBC Health Reporter Philippa Roxby have a go at conch blowing as there is new research saying it might help the breathing disorder obstructive sleep apnoea.

Plus, research into the relationship between a covid-19 infection and RSV in children. Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producer: Katie Tomsett